Dual Stimuli-Responsive Comb Polymers from Modular N-Acylated Poly(aminoester)-Based Macromonomers
| Autor: | David M. Haddleton, Athina Anastasaki, Mechelle R. Bennett, Alice Mortiboy, Greg S. Sulley, Paul Wilson, Patrick A. J. M. de Jongh, Kristian Kempe |
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| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Acrylate Materials science Aqueous solution Polymers and Plastics Organic Chemistry Chain transfer 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Monomer chemistry Polymerization Polymer chemistry Materials Chemistry Copolymer 0210 nano-technology Acrylic acid |
| Zdroj: | ACS Macro Letters. 5:321-325 |
| ISSN: | 2161-1653 |
| DOI: | 10.1021/acsmacrolett.5b00904 |
| Popis: | We report the synthesis of dual-responsive N-acylated poly(aminoester) (NPAE)-based comb polymers with varying molecular composition and monomer sequence via a combination of spontaneous zwitterionic copolymerization and redox-initiated reversible addition–fragmentation chain transfer (RRAFT) polymerization. NPAE macromonomers were synthesized from different nucleophilic (MN), for example, 2-ethyl-2-oxazoline (EtOx) or 2-ethyl-2-oxazine (EtOz), and electrophilic monomers (ME), for example, acrylic acid (AA) or 2-carboxyethyl acrylate (CEA), to tune the hydrophilicity and sequence of the systems. The latter was found to influence the thermal properties and stability of the respective comb polymers. Turbidity investigations in aqueous solution revealed a dual-responsive behavior of the comb polymers being responsive to both temperature and pH changes due to ω-carboxylic end groups of the NPAE-based macromonomers. Additional methylene groups in the NPAE backbone rendered the corresponding systems more hydrop... |
| Databáze: | OpenAIRE |
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